curl --request POST \
  --url https://api.getnexor.ai/api/public/leads/{id}/assign-workflow \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "workflow_id": "123e4567-e89b-12d3-a456-426614174000"
}
'

{
  "success": true,
  "workflow_run": {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "workflow_id": "123e4567-e89b-12d3-a456-426614174000",
    "workflow_name": "Premium Outreach",
    "movement_type": "enrollment",
    "paused": false
  }
}